Fluid-fuel burner.



No. 7|2,835. Patented Nov. 4, |902 .I MURAN.

FLUID FUEL BURNER.

(Application mea Feb. 1o, 1902,)

(No Model.)

) I ma Neims PETERS co.. uoauwo.. wAsmNsToN, D, c.

UNITED STATES PATENT OFFICE.

JAMES MORAN, OF NEW YORK, N. Y.

FLUID-FUELA BURNER.

SPECIFICATION forming part of Letters Patent No. 712,835, dated November 4,1902.

Application filed February 10,1902. Serial No. 93,409. (No model.)

.To if/ZZ whom t may corr/cern:

Be it known that I, JAMES MORAN, of the city, county, and State of New York, have in-` vented certain new and useful Improvements in Fluid-Fuel Burners, of which the following. is a full, clear, and exact' specification, refer-- ence being had to the accompanying drawings,v

wherein- Figure l is a horizontal sectional view-of ai pressure-pipe and burner embodying my in-v vention; Fig. 2, a cross-sectional View thereof on lines 2 2 indicated in Fig. l; Fig. 3, a simi,-

lar View like Fig. 2, showing a modified construction embodying myinvention; Fig. 4, an enlarged detail cross-sectional view of the' burner-bushing and valve-seat and of the.

burner detached therefrom; and Fig. 5, an

enlarged detail view, an elevation of the.

valve-plug and valve-stem, also Yseparated from each other.

My invention relates to devices for utiliza-` tion of fluid fuels, and more particularly to burners for crude liquid fuel, thoughV my improvement is equally well applicable to any liquid-fuel burner Wherethe oil is forcibly driven through a nozzle into a carbureter,

gas-generator, or into an oven or furnace.`

The drawings illustrate a carburizing or connected to the oil-pump or oil-reservoir,1

from which the oil is driven under pressure.

B is a nozzle screwed in flange o of the pres-` sure-pipe and communicating with the compartment A. Gis a nozzle communicating with the compartment A2. nary arrangement of a hydrocarbon or carburizing burner, and I do not claimthis ar-VA rangement as any part of my invention.l

My invention consists in the particular arrangement of the connection of the nozzle C with the web b by means of the bushing and valve-seat d, and in the combination therewith of the valve D, having a separable plug G afxed thereto, as will be explained more fully hereinafter.

"ing, diminishing,

bisaweb` The compartment Ay This is the ordi-` ,The proper operation `and function of any koil-burner requires, however, the oil to be driven forcibly through the nozzle and that the volume of its flow be capable of regulatducing or increasing the force of the pressure upon the oil.

All oil used as liquid fuel is generally crude oil containing considerable quantities of corroding impurities and sand, which affect in- 'juriously the valves through which the oil is so forcibly driven, thus necessitating the very frequent regrinding and replacing of the valve parts. For this reason burners wherein Ythe fiow of the oil is regulated by diminishi ying or increasing the pressure upon the oil are prevalently used, though' they are not as efficient. It is also necessary to make the cross-sectional area of the burner-tube eX- actly as required for the llame, and then the Vrequisite pressure must practically be made constant. Such burners are quickly worn out, sand and other impurities grinding the "interior of the burner-tube and enlarging its orifice, thereby reducing the discharging ve- 'locity of the oil,which in turn again affects detrimentally the carburizing or other process.

The use of needle-valves for regulating of .Athevolu'me of the iiow of the oil through the "burner-tubefwas found impracticable owing to thepcorroding and-grinding effects of the oil, which rapidly ruined the valve and the valve-seat. 'Considering this circumstance and the defects vof such arrangements wherein such valves for regulating the Vflow of the oil arernot used I devised the burner shown in the drawingsA andhereinafter described with the object in view to enable'the flow of the Iiuid fuel to be regulated byvmeans of such a valve and to obviate thev difficulties heretofore encountered. For this purpose I provide a flanged aperture ce in the web b of the pressuretube. This aperture yis vscrewthreaded, and into it I fit the bushing d, having one end of its bore preferably beveled and ground to form a seat t' for the valveplug g. The other end of the bore of the bushing d is recessed and provided with an internal screw-thread. Into this screw-threaded recess o. the socketj of the burner-tube or nozzle Cv is fitted and tightly screwed therein. The bushing d is made, preferably, of some or increasing without re` IOO hard metallic composition; but it may also be made of some metal or other substance which permits its being hardened after inishing the bushing. The object of using this bushing is twofold-first, to enable me to produce a valve-seat which will withstand the deteriorating action of the fuel ingredients passing through it, and, second, to reduce the cost of repairs, in that only this bushing needs to be replaced when its orifice is so worn out as to render it ineective for closing the nozzle by means of the valve-plug g. The use 0f the bushing also aids in preserving the nozzle, and the interposition of the bushing between the nozzle and the pressure-tube tends to preserve the solidity of the connection between the fuel-conductor and the nozzle. Opposite the aperture in the web l), wherein bushing d is screwed, another aperture his provided in the pressure-tube. This aperture is located concentrically with the other, and into it is screwed valve-box F.

The screw-threaded stemf of valve D, having a slot or bore n on its ond and a handwheei or knob o on the other end, is filled into the aperture Z of valve-box F, screwthreaded in the bottom ofthe box and smooth in the top. A suitable packing q is inserted in the recess in the top of the valve-box, held therein by hollow plug r, screwed on top of it. The slot or aperture n in the end of stem fserves to receive the stem of valve-plug g, secured to the stem by cross-pin p, inserted through a bore extending through the stem and the stem m of the valve-plug. This arrangement is provided to enable the replacing of Valve-plug g when worn out and preserving the valve-stem. The arrangement of this connection isshown in the detail Fig. 5. In this figure the stem off' the plug g is shown to be screw-threaded. Such arrangement makes the connection more rigid, but is not essential for the operations of my device.

Pluggis made, preferably, of hard metallic composition or other material permitting the hardening thereof after finishing. The point of this valve-plug g is fitted into the valveseat "i, provided in the bushing.

The operation of the device is plain from the description of its construction. The fuel may be driven under any desired pressure. The volume of its dow is minutely regulated by setting the valve D accordingly. By means of this valve also the flow of the fuel is stopped. As stated above, such fluid fuel contains a large quantity of impurities, and of these the heavier ones-more particularly the sand-settle in the bottom of the pressurepipe during the periods the burner is not used. On restarting the burner the motion of the oil raises these heavier impurities and drives them into the fuel tube or nozzle C,

thereby often clogging itand closing the flow of the fuel. To avoid this, I provide in the bottom of the pressure-pipe, underneath the bushing d, a flanged aperture t, in which an outlet-pipe u is secured and provided with a stop-cock w. In this recess the heavier impurities settle when the How of the fuel is stopped, and then if before opening the valve D and starting the burner the cock w is turned the sediment of these impurities is discharged andthe clogging of nozzle C avoided.

In Fig. 31a somewhat-modified construction of my improvement is shown. In this structure the valve-box is omitted and the screwthreaded aperture for the stem of the valve D is provided in a boss cast upon the pressure-pipe. A part of the aperture Z on the outside of the pressure-tube is enlarged, and in the recess formed thereby packing q is set and held in its place by plug r. Furthermore, the bushing d is set reversely in the Web b, being screwed in through the aperture in the pressure-pipe wherein the nozzle B is secured. In this construction nozzle C and bushing d can only be removed from that.

side and through the aperture where the nozzle B' is screwed to the pressure-pipe. In the construction previously described, and shown in Figs. 1 and 2, the nozzle C and bushing d can be removed through either side after valve-box F or nozzle B are unscrewed. This arrangement possesses the advantage 'that the burner may be repaired or any part thereof exchanged without removing the pressure-tube from its position in the apparatus where the burner is used.

I claim as my inventionvA duid-fuel burner comprising a pressuretube, divided by a web having a flanged, screw-threaded aperture, approximately in the center thereof; a screw-threaded bushing, having one end of its bore shaped to form a valve-seat, and the other end of its bore recessed and provided with an internal screwthread; a nozzle screwed in the recess of the bushing; screw-threaded apertures in the walls of the pressure-tube, concentrically located With the aperture of the web; a valvestem screwed in the aperture of the Wall of the pressure-tube, opposite the valve-seat of the bushing; a valve-plug, fitted into the valveseat, removably secured to the valve-stem, and an outer nozzle screwed in the aperture in the wall of the pressure-tube, concentrical with and surrounding the nozzle screwed in the recess of the bushing, substantially as herein shown and described.

JAMES MORAN.

Vitnesses:

HENRY SGHREITER, M. A. HELMKE.

IOO 

